HI-TECH
FERROUS METAL SPECIFICATION AND PROPERTIES
USA CHEMICAL COMPOSITION MECHANICAL PROPERTIES CHARACTERISTICS & USES
AISI
Specn.
No.
Material C
Min Max
Si
Min Max
Mn
Min Max
Ni
Min Max
Cr
Min Max
Mo
Min Max
S
Min Max
P
Min Max
Others
Min Max
INDIAN ASTM SPANISH GERMAN BRITISH EN Tensile
Strength
Min.
(N/mm2)
Yeild
Strength
Min.
(N/mm2)
EL.
%
Min.
Heat Treatment  
1020
1030
1040
Carbon Steel 0.15 0.25
0.25 0.35
0.35 0.45
0.20 0.60
0.20 0.60
0.20 0.60
0.30 0.60
0.70 1.00
0.70 1.00
Traces
Traces
Traces
Traces
Traces
Traces
Traces
Traces
Traces
0.04
0.04
0.04
0.04
0.04
0.04
  1034-1982 Gr.1A
1034-1982 Gr.1B
1034-1982 Gr.1C
A732 Gr.1A
A732 Gr.2A
A732 Gr.3A
F-112
F-113
f-114
1.0443
1.0551
1.0553
3146-1974 Pt.I CLA1,Gr.A
3146-1974 Pt.I CLA1,Gr.B
3146-1974 Pt.I CLA1,Gr.C
3
5
8
415
450
586
275
310
414
24
25
10
Annealed
Annealed
Quenched & Tempered
Plain Carbon Steel used in general Engineering.application involving low/ medium strength properties
e.g.Bracket, Housing, Links etc.
8620
1016
Case Hardening
Cr-Ni-Mo Steel
Case Hardening Carbon Steel
0.15 0.25
0.10 0.18
0.20 0.80
0.20 0.60
0.65 0.95
0.60 1.00
0.40 0.70
0.40
0.15 0.25
0.10
0.04
0.04
0.04
0.04
      A732 Gr.13Q F-1524
F-151
1.6523
1.1141
3146-1974 Pt.I CLA 9 362
32
724
475
       
4140
4340
52100
Cr-Mo Steel
Cr-Ni-Mo Steel
Cr Steel
0.35 0.45
0.35 0.45
0.95 1.10
0.20 0.80
0.20 0.80
0.20 0.80
0.70 1.00
0.70 1.00
0.25 0.55
1.65 2.00 0.80 1.10
0.70 0.90
1.30 1.60
0.15 0.25
0.20 0.30
0.04
0.04
0.04
0.04
0.04
0.04
    A732 Gr.8Q
A732Gr.10Q
A732 Gr.15A
F-1252
F-1272
F-131
1.7225
1.6565
1.2059
3100 Type 5
467:0818- M 40
970:534-A99
19C
24
31
1241
1241
635
1000
1000
345
5
5
5
Quenched & Tempered
Quenched & Tempered
Quenched & Tempered
Alloy Steel for medium to high srength applications. Good strength,shock and fatigue resistance. Used in Automotive components,Brackets, Levers etc..
4161 Abrasion Resistant
Steel
0.55 0.65 0.30 0.80 0.50 1.00 0..40 0.80 1.50 0.20 0.40 0.04 0.04         1.7229 3146:1974 Pt.I CLA 12 Gr.C         Quenched & Tempered Abrasion resistance steel with good thorough hardness suitable for hardened parts subjected to wear & abrasion.
4130 Cr-Mo Steel 0.25 0.35 0.20 0.80 0.70 1.00   0.80 1.10 0.15 0.25 0.04 0.04     A732 Gr.7Q F-222   970:708- A 30   1030 793 7 Quenched & Tempered Alloy Steel with medium to high srength applications. Good strength,shock and fatigue resistance. Used in
Automotive components,Brackets, Levers etc..
303
304
304 L
316
316 L
ALLOY 20
Austenic Stainless
Steel
0.16
0.08
0.03
0.08
0.03
0.07
2.00
2.00
2.00
1.50
1.50
1.50
2.00
1.50
1.50
1.50
1.50
1.50
9.00 11.00
8.00 11.00
8.00 11.00
9.00 12.00
9.00 12.00
27.50 30.50
18.00 21.00
18.00 21.00
17.00 21.00
18.00 21.00
18.00 21.00
19.00 22.00
2.00 3.00
2.00 3.00
2.00 3.00
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
Cu.:3.00-4.00 10774:1983 Gr.1
10774:1983 Gr.2
10774:1983 Gr.10
A743 Gr.CF16
A744 Gr.CF8
A744 Gr.CF3
A744 Gr.CF3
A744 Gr.CF3 M
A744 Gr.CN7 M
F-3504
F-3534
1.4301
1.4306
1.4408
1.4404
3146:1975 PT.II ANC Gr.3A
3146:1975 Pt.II ANC Gr.4B
58A
58H
485
485
485
485
485
485
205
205
205
205
205
205
35
35
35
30
30
35
Solution Annealed
Solution Annealed
Solution Annealed
Solution Annealed
Solution Annealed
Solution Annealed
Comparatively better machineablity with other grades in its class.
Good corrosion resistance. Used in chemical,pharamaceutical and food industries.
Good corrosion resistance and resistance to Intergranular corrosion. Good for parts where post weld heat treatment is not possuble.
Good corrosion & acid resistance. Used in chemical & processing industries. A lso used for handling acid at eveluated temperatures.
Good corrosion resistance.Higher resistance to intergranular corrosion. Good for parts where post weld heat treatment is not possible.
Good corrosion resistance.Higher resistance to intergranular corrosion. Good for parts where post weld heat and many reducing chemicals.
309
310
Heat Resistant Stainless
Steel.
0.04 0.20
0.04 0.20
2.00
1.75
1.50
2.00
12.00 15.00
19.00 22.00
22.00 26.00
23.00 27.00
0.50
0.50
0.04
0.04
0.04
0.04
  10774:1983 Gr.5
10774:1983 Gr.6
A351Gr.CH20
A351Gr.CK20
  1.4837
1.4843
3146:1975 Pt.IIANC Gr.6A
3146:1975 Pt.IIANC Gr.5A
  485
450
205
195
30
30
Solution Annealed
Solution Annealed
Heat and corossion resistant upto 9000 C.Used in super heaters etc. Heat and corossion resistant upto 11000 C.Used where higher Creep srength is required at elevated temperatures e.g. for Turbo supercharger parts etc..
410
420
431
440C

Martensitic Stainless
Steel
0.15
0.20 0.30
0.09 0.20
0.95 1.20
1.00
0.20 1.20
1.00
1.00
1.00
0.20 1.00
1.00
1.00
1.00
1.00
1.25 2.50
1.00
11.50 13.50
11.50 13.50
15.00 17.00
16.00 18.00
0.50
0.15 0.25
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
  10774:1983 Gr.7
10774:1983 Gr.9
A296 Gr.CA15
A296 Gr.CA40
A296 Gr.CA30
F-3401
F-3402/F-310J
F-3427/F-313
1.4008
1.4059
3146:1975 Pt.IIANC Gr.1A
3146:1975 Pt.IIANC Gr.1A
3146:1975 Pt.IIANC Gr.2
56A
56C
57
540
695
850
760
340
435
630
450
15
11
9
14
Annealed
Annealed
Annealed
Annealed, Normalized, Tempered
Stainless steel of medium corrosion resistance giving a range of Mechanical properties used in wide variety of applications in Gas,Chemical and Petroleum Industries and heat resistant parts not subjected to high sresses.Grade 440C can be hardened upto 60HRC.Grade 431 is a high tensile Stainless steel resistance upto 7600C used in pumps and valves industry.
630 Precipitation Hardening
Steel 17-4PH
0.07 1 1 34 1517   0.04 0.04 Cu:2.30-4.00 Cb:0.15-0.45   A747 C87 Cu 1         1240 758 10 Solution Annealed Combining high srength with corrosion resistance and good welding characteristics.Used in Valves & Structural parts.